FAST® comes available in factory-built or field-installed modules, providing high performance treatment in a minimal space. The popular Modular FAST® arrangement handles smaller, variable flows generated from onsite applications, including schools, small developments, commercial and public facilities, and hospitality venues such as hotels, camps, and restaurants. No daily operation is required. FAST® provides significantly improved performance over traditional leach field and septic tank systems, especially when a nitrification/denitrification component is specified in permit or effluent requirements.